Express the work in terms of l, f, and θ. remember to use radians, not degrees, for any angles that appear in your answer.

1 answer:

6 0

Assuming I see a force F acting on an object at an angle theta with the horizontal pushing it through a rough surface over a distance L such that the horizontal component is just required to overcome friction.

Then work done is
W=FLcos(theta)

(Read assumptions above due to lack of diagram)

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